{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2023-42821",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2023-09-14T16:13:33.310Z",
        "datePublished": "2023-09-22T16:55:33.355Z",
        "dateUpdated": "2024-09-24T19:27:42.779Z"
    },
    "containers": {
        "cna": {
            "title": "github.com/gomarkdown/markdown Out-of-bounds Read while parsing citations",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-125",
                            "lang": "en",
                            "description": "CWE-125: Out-of-bounds Read",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 7.5,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/gomarkdown/markdown/security/advisories/GHSA-m9xq-6h2j-65r2",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/gomarkdown/markdown/security/advisories/GHSA-m9xq-6h2j-65r2"
                },
                {
                    "name": "https://github.com/gomarkdown/markdown/commit/14b16010c2ee7ff33a940a541d993bd043a88940",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/gomarkdown/markdown/commit/14b16010c2ee7ff33a940a541d993bd043a88940"
                },
                {
                    "name": "https://github.com/gomarkdown/markdown/blob/7478c230c7cd3e7328803d89abe591d0b61c41e4/parser/citation.go#L69",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/gomarkdown/markdown/blob/7478c230c7cd3e7328803d89abe591d0b61c41e4/parser/citation.go#L69"
                }
            ],
            "affected": [
                {
                    "vendor": "gomarkdown",
                    "product": "markdown",
                    "versions": [
                        {
                            "version": "< 0.0.0-20230922105210-14b16010c2ee",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2023-09-22T16:55:33.355Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "The package `github.com/gomarkdown/markdown` is a Go library for parsing Markdown text and rendering as HTML. Prior to pseudoversion `0.0.0-20230922105210-14b16010c2ee`, which corresponds with commit `14b16010c2ee7ff33a940a541d993bd043a88940`, parsing malformed markdown input with parser that uses parser.Mmark extension could result in out-of-bounds read vulnerability. To exploit the vulnerability, parser needs to have `parser.Mmark` extension set. The panic occurs inside the `citation.go` file on the line 69 when the parser tries to access the element past its length. This can result in a denial of service. Commit `14b16010c2ee7ff33a940a541d993bd043a88940`/pseudoversion `0.0.0-20230922105210-14b16010c2ee` contains a patch for this issue."
                }
            ],
            "source": {
                "advisory": "GHSA-m9xq-6h2j-65r2",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T19:30:24.609Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "name": "https://github.com/gomarkdown/markdown/security/advisories/GHSA-m9xq-6h2j-65r2",
                        "tags": [
                            "x_refsource_CONFIRM",
                            "x_transferred"
                        ],
                        "url": "https://github.com/gomarkdown/markdown/security/advisories/GHSA-m9xq-6h2j-65r2"
                    },
                    {
                        "name": "https://github.com/gomarkdown/markdown/commit/14b16010c2ee7ff33a940a541d993bd043a88940",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://github.com/gomarkdown/markdown/commit/14b16010c2ee7ff33a940a541d993bd043a88940"
                    },
                    {
                        "name": "https://github.com/gomarkdown/markdown/blob/7478c230c7cd3e7328803d89abe591d0b61c41e4/parser/citation.go#L69",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://github.com/gomarkdown/markdown/blob/7478c230c7cd3e7328803d89abe591d0b61c41e4/parser/citation.go#L69"
                    }
                ]
            },
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-09-24T19:26:08.128213Z",
                                "id": "CVE-2023-42821",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-09-24T19:27:42.779Z"
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        ]
    }
}